| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Comly Barbara J. | EVP, GC & Corporate Secretary | C/O MIAMI INTERNATIONAL HOLDINGS, INC., 7 ROSZEL ROAD, SUITE 1A, PRINCETON | /s/Alessandra Maria Corona Henriques, Attorney-in-Fact | 2025-08-13 | 0002080878 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | MIAX | Common Stock | 869K | Aug 13, 2025 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | MIAX | Series B Preferred Stock | Aug 13, 2025 | Common Stock | 101K | Direct | F1 | |||||||
| holding | MIAX | Nonvoting Common Stock | Aug 13, 2025 | Common Stock | 156K | Direct | F2 | |||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | Aug 13, 2025 | Nonvoting Common Stock | 8.33K | $12.00 | Direct | F3 | ||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | Aug 13, 2025 | Nonvoting Common Stock | 16.7K | $12.00 | Direct | F3 | ||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | Aug 13, 2025 | Nonvoting Common Stock | 8.33K | $12.00 | Direct | F3 | ||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | Aug 13, 2025 | Nonvoting Common Stock | 13.1K | $15.22 | Direct | F3 | ||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | Aug 13, 2025 | Common Stock | 10.1K | $19.84 | Direct | F4 | ||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | Aug 13, 2025 | Common Stock | 4.98K | $20.08 | Direct | F5 | ||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | Aug 13, 2025 | Common Stock | 4.46K | $22.40 | Direct | F6 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | Aug 13, 2025 | Nonvoting Common Stock | 142K | $12.00 | Direct | F7 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | Aug 13, 2025 | Nonvoting Common Stock | 133K | $12.00 | Direct | F7 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | Aug 13, 2025 | Nonvoting Common Stock | 142K | $12.00 | Direct | F7 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | Aug 13, 2025 | Nonvoting Common Stock | 137K | $15.22 | Direct | F7 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | Aug 13, 2025 | Nonvoting Common Stock | 150K | $16.14 | Direct | F7 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | Aug 13, 2025 | Common Stock | 115K | $19.84 | Direct | F8 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | Aug 13, 2025 | Common Stock | 95K | $20.08 | Direct | F9 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | Aug 13, 2025 | Common Stock | 70.5K | $22.40 | Direct | F10 |
| Id | Content |
|---|---|
| F1 | The shares of Series B Preferred Stock are convertible on a one-for-one basis into shares of common stock commencing on the Company's initial public offering of its common stock ("IPO") effective date, which is August 13, 2025. The Series B Preferred Stock has no expiration date. |
| F2 | The shares of nonvoting common stock are convertible on a one-for-one basis into shares of common stock commencing at any time. The nonvoting common stock has no expiration date. |
| F3 | The incentive stock options are fully vested. The options were granted initially as the right to buy nonvoting common stock. On the closing date of the IPO, these will convert to the right to buy common stock instead of nonvoting common stock. |
| F4 | 5,040 of the shares subject to this incentive stock option are vested and the remaining 5,040 will vest on March 29, 2026 subject to the reporting person's continued service to the Issuer or its subsidiaries through the applicable vesting date. |
| F5 | All of the shares subject to this incentive stock option will vest on June 10, 2027, subject to the reporting person's continued service to the Issuer or its subsidiaries through the applicable vesting date. |
| F6 | All of the shares subject to this incentive stock option will vest on June 16, 2028, subject to the reporting person's continued service to the Issuer or its subsidiaries through the applicable vesting date. |
| F7 | The nonqualified stock options are fully vested. The options were granted initially as the right to buy nonvoting common stock. On the closing date of the IPO, these will convert to the right to buy common stock instead of nonvoting common stock. |
| F8 | 78,294 of the shares subject to this nonqualified stock option are vested and the remaining 36,626 will vest on March 29, 2026 subject to the reporting person's continued service to the Issuer or its subsidiaries through the applicable vesting date. |
| F9 | 33,334 of the shares subject to this nonqualified stock option are vested, 33,333 will vest on June 10, 2026 and the remaining 28,353 will vest on June 10, 2027, subject to the reporting person's continued service to the Issuer or its subsidiaries through the applicable vesting date. |
| F10 | 25,000 of the shares subject to this nonqualified stock option will vest on June 16, 2026, 25,000 will vest on June 16, 2027 and the remaining 20,536 will vest on June 16, 2028, subject to the reporting person's continued service to the Issuer or its subsidiaries through the applicable vesting date. |
See Exhibit 24.1 - Power of Attorney